The particle size and distribution were determined by transmission electron microscopy and laser particle size distribution analyzer, ultraviolet-visible absorption curve was also characterized.

通過透射電鏡、激光粒度分布儀等測定了納米顆粒的粒徑和分布情況国产79av，并對納米金溶膠的紫外可見吸收曲線進行了研究啪啪啪www。

In addition, some experience formulas for them are regressed. The third chapter establishes a unified S-N curve equation to calculate multi-axial fatigue ultimate strength of concrete considering both the effect of confinement and minimum/maximum stress ratio, based on the triaxial fatigue test data in this paper and the test results under uniaxial and biaxial fatigue loading in previous literatures. Moreover, the consistency of calculating condition fatigue ultimate strength with fatigue life distribution and initial ultimate strength distribution is analyzed.

第二章簡要地介紹了本文三軸疲勞試驗裝置，進行了兩向等側壓約束下混凝土立方體試件三軸受壓等幅和變幅疲勞試驗一级特a片，分析了三軸受壓疲勞破壞機理一级A做片性视频欧美，給出了相應的疲勞破壞試驗判斷標準；得到了混凝土在兩向側壓約束下單級和多級受壓疲勞的變形發(fā)展規(guī)律亚洲色图日韩无码一区二区，包括最大縱向應變美女黄片丝袜A片、殘余應變、最大縱向應變率和疲勞變形模量等隨循環(huán)次數(shù)的發(fā)展規(guī)律以及疲勞損傷的演變規(guī)律免费爽A片在线观看无打码漫画，并給出了相應的經(jīng)驗公式国产精品视频免费在线。

Marc this paper carried out a finite element numerical simulation on the forming process of cold extruding for the starlike sleeve of constant speed cardan joint of car. The interrelated technological problems of numerical simulation were discussed in detail, the variation curve of extruding force during the course of loading, the cloud chart, which varies along with time, of temperature field distribution of workpiece, the equivalent plastic strain cloud chart of workpiece and the stress distribution cloud chart of diem inner ring were obtained thus explained fairly nice the reason of fatigue damage of dies.

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Furthermore, a frequency distribution table can be developed to form a cumulative frequency distribution table which is then used to construct a cumulative frequency polygon or curve.

利用頻數(shù)分布表亦可再制作出累積頻數(shù)表，利用累積頻數(shù)表便可制作累積頻數(shù)多邊形和累積頻數(shù)曲線美女黄网站內裤。

A new key distribution scheme based on the elliptic curve cryptc,system was developed to solve the lower efficiency and higher resource occupation problems of the existing key distribution schemes.

為了解決現(xiàn)有密鑰分配協(xié)議所存在的工作效率偏低和資源占用率偏高等問題欧美一级黄片在线播放。，提出了一種基于橢圓曲線密碼體制的高效安全密鑰分配協(xié)議。

The software system not only performs common process capability index computation, common distribution function computation and curve fitting, but also has the function especially for computing process capability index for non-normal distribution and multivariate.

該軟件不僅包含常規(guī)工序能力指數(shù)的計算国产看片无码精品看片，通常遇到的分布函數(shù)的計算與擬合五月天自拍视频，而且具有非正態(tài)和多變量工序能力指數(shù)計算兩個重要模塊。

In this chapter, three kinds of target recognition methods are performed, which are:①Target recognition method based on the description of polarization parameter plane. The echo polarization states of target are projected onto the polarization state plane described by the ellipticity ε and the tilt angle τ of the polarization ellipse, the change of parameter following ferquency becomes the chart. According to the changing trait of the chart, the multidimensional polarization feature space of target has been contructed. Furthermore, a series of polarization feature parameters used in designing the structure of target recognition device are extracted, and they are insensible to the posture of target.②Target recognition method based on the description of Poincare polarization sphere. The echo polarization states of target expressed by Stokes vector are projected onto the Poincare polarization sphere. The conception of polarization ferquency stability, which is used in describing the dynamic distribution characteristics of the target echo polarization states on Poincare polarization sphere, has been defined. A group of polarization feature parameters used in designing the structure of target recognition device are extracted, and they are insensible to the posture of target.③Target recognition method based on the description of frequency sensitivity. In accordance with the conception of the polarization state distance defined on Poincare polarization sphere, the frequency sensibility of the physical structure property of target has been investigated, the frequency distribution feature curves in PSD domain are obtained, and targets'features are extracted by means of the curve-fitting method with Least Square Criterion.

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Base on internal energy, the model for average temperature was researched in this article. Through making a proper assumption, the polynomial curve model for temperature distribution and the linear model for specific heat distribution between two nodes were developed.

本文以內能為基礎建立平均溫度解析模型老色鬼在线视频一区二区，通過合理假設建立鋼板厚度方向上的多次曲線溫度模型和節(jié)點間線性比熱模型，從而獲得任意時刻鋼板厚度方向上的平均溫度免费看美女被操网址。

The optical absorbance properties of all films were examined by UV-VIS spectrometer. The results show that the absorbance curve of TiO2/Pt/TiO2 composite film redshifted by 30 nm. Its absorbance curve expanded even up to 670 nm. The SEM results show that there existed a difference in the morphologies and size distribution of three kinds of films.

掃描結果表明：3種薄膜中TiO2顆粒形狀有所差異性欧美人妖猛交，在夾層式TiO2/Pt/TiO2薄膜中，顆粒尺寸較均勻美女网站十八污，大小在20～40 nm之間欧美成年男女免费性爱视频；TiO2/TiO2/Pt薄膜表面顆粒聚集較嚴重中文字幕视频在线；而Pt/TiO2/TiO2薄膜中顆粒大小不均，部分顆粒長大現(xiàn)象較嚴重美女被操网站免费。

Young's two slits interference of discrete double light source is numerically simulated,and the curve of visibility, curve of light distribution and interference pattern are solved with different type of line and line width.

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